Crushing-machine.



PATENTED OCT. 24;, 1906.

A. GAMERON.

GRUSHING MACHINE.

APPLIOATION FILED AUG. 2a. 1903.

8 SHEBTS-SHEET 1.

No. 802,842. PATENTEI) OCT. 24, 1905. A. CAMERON.

' GRUSHING MACHINE.

APPLICATION FILED 18116.29, 1903.

3 SHEETS-SHEET 2.

qflfhymd Q C t/mum M4 44% Y 41, e 5; 7g 5 PATENTBD OCT. 24, 1905.

A. CAMERON. GRUSHING MACHINE.

APPLICATION FILED AUG. 29, 1903.

3 SHEETS-SHEET 3.

ARTHUR CAMERON, OF CHICAGO, ILLINOIS, ASSIG-NOR TO NATIONAL DRILL ANDMANUFACTURING COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF WESTVIRGINIA.

GWUSHIINQI IIWAOI-HNEI Specification of Letters Patent.

Patented Oct. 24, 1905.

Application filed August 29, 1903. Serial No. 171,208.

To a whom-it may concern.-

Be it known that LARTHUR CAMERON. acitizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented a certain new and useful Improvement in Crushing-Machines, ofwhich the following is a specification.

My invention relates to crushing-machines in which a reciprocating jawis arranged to cooperate with a stationary crushing-jaw for crushingrock, ore, and the like, the reciprocating jaw being operated by apitman, with which it has a jointed connection, and the pitman beingcontrolled by swinging arms or links having jointed connection with thepitman and tied to swing about a transverse axis forward of thereciprocating crushing-jaw.

Objects of my invention are to secure rapid and eflicient action, toreduce the power employed for operating the reciprocating crushing-jaw,to produce a grinding crushing action, to provide improved means forvarying the distance between the axis about which the arms swing and theaxis about which they have a jointed or pivotal connection with thepitman, to balance the reciprocating crushing-jaw in asimple andefficient way, and to provide a generally-simplified construction ofcrushingmachine.

In the accompanying drawings, Figure 1 is,

on line 4 4C in Fig. 2. Fig. 5 is a detail section on line 5 5 in Fig.3.

A indicates the body-frame of the machine, and B denotes the stationarycrushing-jaw arranged at what may be termed the forward end of themachine. The reciprocating crushing-jaw C is arranged back of andopposite the stationary crushing-jaw and is provided with or secured toa rearwardly-ex'tending arm D, which is, in effect, an arm on the saidjaw. The rear end of the jaw-arm D has a jointed or pivotal connectionwith the pitman E, which is operated by an eccentric l on a rotarypower-driven shaft, as usual, said shaft being-indicated byadotted linein Fig. 1. The pitman preferably extends upward from the axis of thedriving-shaft and is controlled by swinging arms or links F, havingtheir rear end portions joint-connected with or pivoted to the pitmanand having their forward end portions tied to swing about the axis of ahorizontally and transversely arranged shaft G at a point forward of thereciprocating crushing-jaw. The reciprocating crushingjaw is supportedto oscillate about a transverse horizontal axis located between theupper and lower portions of the jaw and susceptible of aforward-and-back reciprocating movement during operation, it beingunderstood that this axis is between the upper and lower portions of thejaw or intermediate or substantially intermediate of the upper and lowerends of the jaw, in contradistinction to a crushing-machine in which thelower end of the jaw is sustained by a pivotal support arranged forforward-and-back reciprocating movement.

By arranging the axis about which the jaw oscillates as in thisapplication the jaw can be balanced or substantially balanced so as tobe susceptible of easy operation, and to avoid all tendency on the partof its shifting pivotal support to cramp or bind and by thus arrangingthe jaw to oscillate about such axis in contradistinction to a jaw whichvibrates about a pivot at its lower or upper end I am enabled to securemore efficient crushing action upon the material within a hopper orspace between the two jaws, the crushing action upon the mass ofmaterial between the jaws being rapid and effective and practicallycontinuous. I also permit the axis about which the reciprocating jawoscillates to reciprocate along an incline which slopes downwardlytoward the stationary crushing-jaw, whereby a grinding action isattained, and as amatter of further improvement I form said inclinealong an upward curve arranged to secure the necessary degree ofinclination and preferably formed on the arm of a circle having itscenter below the reciprocating crushing-jaw. As

one way in which the reciprocating jaw can secured to the body-frame,and each of such bearings has its upper surface adapted to provide acurved bearing-face 2, which slopes downwardly toward the stationarycrushingjaw. As shown in Figs. 2 and 4, these bearings I are arranged atthe lower ends of vertical slots or openings 3 in opposite sides of thebody-frame, and with such arrangement the journals or pivots formed byend portions of the shaft H extend through the slots, which are of awidth to permit these pivots to reciprocate back and forth upon theinclined bearing-faces 2, it being seen that during operation the pivotsor journals formed by the shaft H will also rock upon the inclinedbearingfaces 2. It is obvious, therefore, that the reciprocating jaw is,in effect, provided with downwardly-curved bearing-faces,which rock andshift upon the inclines formed by the bearing-faces 2, and that, broadlyconsidered, the bearing-faces 2 are, in effect, a single bearing-face,which is divided into two portions for convenience of construction.

From the foregoing it will be seen that each bearing-surface 2 on thebody-frame inclines downwardly and forwardly notwithstanding the factthat they are each curved and that the movable crushing-jaw is providedwith bearings supported upon and adapted and arranged to traverse thebearing-surfaces 2.

The rod or shaft G is formed with cylindric end portions 4, constitutingpivots or journals upon which forward end portions of the arms F arehung, whereby when the shaft G is held stationary the arms F can turnthereon, and thereby swingabouttheaxisofsuchshaft. The portion 5 ofshaft G extending between its journal portions 4: is enlarged to form aneccentric which engages in a bearing K, secured to the forward portionof the body-fram e, as by bolts 6 or by any other suitable mechanicaldevice. As portion 5 of the shaft is eccentric to an axis passingthrough its journal portions 4, the latter are, in effect, crank orwrist pins upon opposite ends of the main portion 5 of the shaft, andhence by rotative adjustment of the shaft Gr its axis about which thearms F swing can be adjusted so as to vary the distance between suchaxis and the axis of the jointed or pivotal connection between the armsand the pitman, it'being observed that this variation is essential fordifferent kinds of work.

After the shaft G has been rotatively adjusted it can be rigidly securedto the bearing K in any suitable way-as, for example, by setscrews 7,arranged to extend through the hearing K and engage in notches orrecesses 8 in the shaft. In order to permit the shaft G to be easilyadjusted, it can have squared or polygonal end portions 9, which can beengaged by a crank or crank-handle.

The arms F can be pivotally attached to the any suitable or desired waythe hinge or pivotal connection can be made between the jaw arm and thepitman, it being preferable to connect the arm D with the pitman at apoint nearer the eccentric than is the point of connection between thepitman and the swinging arm F.

What I claim as my invention is- 1. In a crushing-machine, acrushing-jaw supported for oscillatory motion about an axis arrangedbetween its upper and lower portions and reciprocative laterally to theplane of the jaw-face and along a line inclining downwardly andforwardly; a pitman with which the jaw has a jointed connection; andswinging arms or links having jointed connection with the pitman andtied to swing about an axis forward of the said jaw.

2. In a crushing-machine, a crushing-jaw supported for oscillatorymotion about an axis arranged between its upper and lower portions andreciprocative laterally to the plane of the jaw-face and along a curvedline inclining downwardly and forwardly; a pitman with which the jaw hasa jointed connection; and swinging arms or links having jointedconnection with the pitman and tied to swing about an axis forward ofthe said jaw.

3. In a crushing-machine. a crushing-jaw supported for oscillatorymotion about an axis arranged between its upper and lower portions andreciprocative laterally to the plane of the jaw-face and along the arcof a circle having its center below the jaw; a pitman with which the jawhas a jointed connection; and swinging arms or links having jointedconnection with the pitman and tied to swing about an axis forward ofthe jaw.

I. In a crushing-machine, a crushing-jaw supported for oscillatorymotion about a laterally-reciprocating axis arranged between its upperand lower portions, the jaw being to such end provided with a curvedbearingface supported to rock upon and traverse an inclinedsupporting-face which slopes downwardly and forwardly; a pitman withwhich the jaw has a jointed connection; and swinging arms or linkshaving jointed connection with the pitman and tied to swing about anaxis forward of the jaw.

5. In a crushing-machine, a crushing-jaw having a rear arm rigidtherewith and supported for oscillatory motion about an axis arrangedbetween its upper and lower portions and reciprocative laterally to theplane of the jaw-face along a line inclining downwardly and forwardly; apitman with which the jaw-arm has a jointed connection; and swingingarms or links having jointed connection with the pitman and tied toswing about an axis forward of the jaw.

6. In a crushing-machine, a crushing-jaw having a rear arm rigidtherewith and supported for oscillatory motion about an axis arrangedbetween its upper and lower portions and reciprocative laterally to theplane IIO cos, sea

of the jaw-face along the arc of a circle having its center below thejaw; a pitman with which the jaw-arm has a jointed connection andswinging arms or links having jointed connection with the pitman andtied to swing about an axis forward of the jaw.

7. In a crushing machine, a stationary crushingjaw and a reciprocatingcrushingjaw; a pitman with which the jaw has a jointed or pivotalconnection; swinging arms or links having jointed connection with thepitman and arranged 'to swing about a transverse axis forward of thestationary jaw; and an adjustable eccentric device for varying thedistance between said axis and the jointed or pivotal connection betweenthe swinging arms and the pitman.

8. In a crushing machine, a stationary crushingjaw and a reciprocatingcrushingjaw; a pitman with which the reciprocating crushing-jaw hasajointed connection; swinging arms or links having jointed or pivotalconnection with the pitman and supported to swing about an axis forwardof the stationary crushing-jaw; and an adjustable eccentric devicecomprising a bearing forward of the stationary crushing-jaw, and arotatively-adjustalole shaft having journal portions upon which theswinging arms are hung and an eccentric portion engaging the said bearin9. In a crushing machine, a stationary crushing-jaw; & reciprocatingcrushing-jaw arranged opposite the stationary jaw and having a rear arm;a pitman with which said jawarm has a jointed or pivotal connection;swinging arms or links having jointed or pivotal connection with thepitman; a bearing on the body-frame forward of the stationary jaw; and arotatively-adjustable shaft having journal portions upon which theswinging arms are supported, and an eccentric portion 5 intermediate ofsaid journal portions and engaging in said bearing; and suitable meansfor locking said shaft in its adjustment.

10. In acrushing-machine, the body-frame provided at each of twoopposite sides with a bearing-surface inclining downwardly andforwardly; a pitman; a movable crushing-jaw having a jointed connectionwith the pitman and provided between its upper and lower portions withbearing members supported to traverse and rock upon the said inclinedbear ing-surfaces on the body-frame; and swinging arms or links havingjointed connection with the pitman and tied to swing about an axisforward of said jaw.

ARTHUR CAMERON.

Witnesses:

S. A. MOOARTNEY, H. ULRIN.

